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›› 2013, Vol. 30 ›› Issue (5): 637-643.DOI: 10.7523/j.issn.2095-6134.2013.05.010

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Extraction of winter wheat planting areas based on the time-series MODIS data in typical region of North China

ZHANG Jia-Hua1,2, HU Xiao-Xia2, LIU Xue-Feng2, HE Zhen-Ming2   

  1. 1. Key Lab of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China;
    2. College of Earth Sciences, Yangtze University, Jingzhou 434023, Hubei, China
  • Received:2012-10-16 Revised:2012-12-28 Online:2013-09-15
  • Contact: 张佳华,E-mail:jhzhang@ceode.ac.cn

Abstract: The multi-temporal 8-day composite MODIS surface reflectance products of 2004 and 2008 were used to extract winter wheat planting area in the typical region of North China. The time-series EVI curve was built according to the growth period of winter wheat. We reconstruct the MODIS-EVI time-series using Savitzky-Golay smooth filter to reduce the cloud noise. By considering coupling with crop phenology, planting structure, and visual interpretation, we extract the planting area of winter wheat. The results show that the spatial distribution for winter wheat extracted by MODIS-EVI time-series data is about 98% of the statistical data. The planting area of winter wheat in Shandong province was increased by about 15%. However, the planting areas of winter wheat in Beijing and Tianjin regions are mainly invariant in the past 5 years.

Key words: MODIS data, EVI time-series, winter wheat planting area, typical region of North China

CLC Number: